Mastech MAS830B Digital Multimeter
Quick Start Guide
Safety Precautions
Special attention should be paid when using this test and measurement instrument, as improper usage may cause electric shock and damage the equipment.
- Use proper measurement category (CAT), voltage, and amperage rated probes, test leads, and adapters for the measurement.
- Do not use or store the device around explosive gas, vapor, or under high temperature and humidity.
- When handling the test probes and crocodile clips, keep your fingers behind the physical guard.
- Examine the measuring test leads (if present) before use. Any element of which the insulation is deteriorated (even partially), replace them with proper functional test leads.
- Connect the common test lead before the live test lead and remove the live test lead before the common test lead.
- Before measuring current, ensure the instrument fuses are available and disconnect the power supply to the circuit being tested.
- Remove the batteries if the device is not used for an extended period of time, or if stored in temperatures above 45 °C. If the batteries are not removed, battery leakage can damage the device.
Specifications
| Range | Resolution | Accuracy |
|---|---|---|
| V~ 200V/600V | 0.1V/1V | ±(1.2%+10) |
| V- 200mV/2V/20V/200V | 0.1mV/1mV/10mV/0.1V | ±(0.5%+3) |
| V- 600V | 1V | ±(0.8%+5) |
| A= 20μA | 0.01μΑ | ±(1.0%+3) |
| A= 200μA/2mA | 0.1μΑ/1μΑ | ±(1.0%+3) |
| A= 20mA | 10μΑ | ±(1.0%+5) |
| A= 200mA | 0.1mA | ±(1.5%+5) |
| A= 10A | 10mA | ±(3.0%+10) |
| Ω 200Ω/2kΩ/200kΩ | 0.1Ω/1Ω/0.1kΩ | ±(0.8%+2) |
| Ω 2MΩ | 1kΩ | ±(1.0%+5) |
| Ω 2000 | 0.1Ω | ±(0.8%+5) |
Specifications are subject to change without notification.
Basic Usage Examples
Battery Installation:
The image shows the back of the multimeter with the battery compartment open, illustrating how to insert batteries.
DC Voltage Measurement (V-):
The diagram shows the test leads connected to the multimeter and a power source. The red probe is connected to the VΩmA jack, and the black probe to the COM jack. The multimeter is set to the V- range. The display shows '12.56'.
AC Voltage Measurement (V~):
The diagram shows the test leads connected to the multimeter and an AC power source. The red probe is connected to the VΩmA jack, and the black probe to the COM jack. The multimeter is set to the V~ range. The display shows '220'.
DC Current Measurement (A=):
The diagram shows the test leads connected in series with a circuit. The red probe is connected to the 10A or mA jack (depending on the expected current), and the black probe to the COM jack. The multimeter is set to the A= range. The display shows '2.53'.
Resistance Measurement (Ω):
The diagram shows the test leads connected across a resistor. The red probe is connected to the VΩmA jack, and the black probe to the COM jack. The multimeter is set to the Ω range. The display shows '1005'.
Diode Test / hFE Measurement:
The diagram shows the test leads connected to a component. The red probe is connected to the VΩmA jack, and the black probe to the COM jack. The multimeter is set to the hFE position. The display shows '100'.
Company Information
EMEA: MGL EUMAN S.L., C/ Picu Castiellu, Parcelas 11-14 33163, Argame Morcín, Asturias, Spain. Email: cs.emea@mgl-intl.com
USA: MGL AMERICA, INC., 2810 Coliseum Centre Drive, Ste. 100 Charlotte, North Carolina 28217 USA. Email: cs.na@mgl-intl.com
United Kingdom: MGL GROUP U.K. LIMITED, 14 Weller St, London, SE1 1QU, UK. Email: cs.uk@mgl-intl.com
Mexico & LATAM: MGL LATAM S.A DE CV, Colonia Industrial Vallejo Del. Azcapotzalco 02300, Mexico D.F. Email: cs.latam@mgl-intl.com
APAC: MGL APPA Corporation, Flat 4-1, 4/F, No. 35, Section 3 Minquan East Road, Taipei, Taiwan. Email: cs.apac@mgl-intl.com
